Mat Buck says he believes he can help Koroit become even stronger.
The Saints, who won a record-breaking five consecutive premierships this season, have appointed Buck as an assistant coach.
The former South Warrnambool mentor said he wanted to help coach Chris McLaren and the club experience further success.
"I am really confident I will be able to go there and make some players better and hopefully make the team and the club a little bit better as well," he said.
"If I can do that it would be absolutely fantastic for all parties concerned. Above all I am just really excited to get back and earn everyone's respect."
McLaren said he looked forward to having Buck back at Koroit, where he had previously been an assistant coach.
"He’s keen to be back involved and help out where he can and will be involved in training and match day," he said.
"He will bring that experience as a senior coach and is really thorough with his game reviews and previews and vision, so we will definitely get him heavily involved in that area."
The club confirmed Buck’s appointment at its best and fairest which was won by Tim McIntyre.
McLaren said the star forward’s achievement was one to be proud of.
"I mean back-to-back best and fairests in premiership years is a pretty good achievement," he said.
"Generally when you have won a best and fairest you get marked a bit harder.
"But he is ultra consistent and very, very rarely does he play poorly.”
Eight-time premiership player Ben Goodall also confirmed his retirement on the night.
"Clearly he has had an amazing career," McLaren said.
"I think he would have finished on 290-plus games, eight premierships, multiple best and fairests and a Maskell Medal as well as every individual award you could win.
"But he doesn't carry any weight for his personal achievements he is very much about the team."